Bump actions/upload-artifact from 2 to 3

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 2 to 3.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v2...v3)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/publish.yml

@@ -52,7 +52,7 @@ jobs:
           CIBW_SKIP: "*-musllinux_i686 pp39-*" # rustup doesn't install i686-musl, pyO3<0.16 doesn't support pypy3.9
 
       - name: Upload wheels as artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           path: ./wheelhouse/*.whl
           if-no-files-found: error
@@ -78,7 +78,7 @@ jobs:
         run: maturin sdist
 
       - name: Upload sdist as an artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           path: ./light-curve/target/wheels/*.tar.gz
           if-no-files-found: error